Terbitoby



(No Model.)

L. A. KELLY.

PUMP.

No. 326,434. -Patented Sept. 15, 1885.

Y ATTORNEYS.

guide-plates a,

PATENT OFFICE.

LAWRENCE A. ,KELLY, OF DAYTON, WASHINGTON TERRITORY.

SPECIFICATION forming part of Letters P atent No. 326,434, dated September 15, 1885.

Application tiled February 16, 1885. (No model.)

To aZZ whom it may concern:

Be it known that I, LAWRENCE A. KELLY, a citizen of the United States, residing at Dayton, in the county of Columbia, Washington Territory, have invented certain new and useful Improvements in Pumps, of which the following is a description.

Figure 1 is a sectional elevation through the center of my improved pump. Fig. 2 is a side View 'of the same. Fig. 3 is a plan view of the pump-piston, showing the pistonrod in section.

My invention relates to pumps; and it consists in the detailed construction and combination of the parts hereinafter fully described, by which the pump is made doubleacting and caused to discharge a continuous stream of water through a pipe, which also forms the piston rod of the pump, and receives a reciprocating movement from a double rack driven by the continuous rotation of a semi-cogless pinion, provided with guideplates for keeping the said double rack in position.

In the accompanying drawings, similar letters of reference indicate corresponding parts in all the figures.

A is a semi-cogless pinion provided with one on either side of it, and mounted on the shaft a, provided with the crank a at one end for operating it. A similar crank may be attached to the opposite end of shaft a; or a belt-pulley or other driving-gear may be mounted thereon for driving by power when required.

B is a double rack provided with guideplates b, and with a rod, 22, connecting it with the piston-rod of the pump.

The continuous rotation of pinion A will cause the cogs on it to engage alternately with each of the racks, and will impart to them the-reciprocating movement necessary for working the pump.

The guide-plates a keep the double rack B in position sidewise, while the guide-plates I) prevent the cogs of pinion A from entering too deeply into gear with the cogs of the said rack.

G is an upright ings c, in which the shaft aworks,

frame provided with bearand with the flange c, for securing it to the wood-work or masonry round the top of the Well.

D is the pump-cylinder provided with the cover d.

E is a pipe connecting the cover d with the flange 6, bolted to wood-work or masonry at the top of the well.

e is a step, a series of which may be fastened to the pipe E, and serve as a ladder for gaining access to the pump in the wells.

F is the piston of the'pump, provided with the hollow piston-rod f, the top of which is connected to rod 1). The piston F is made hollow and provided with the annular diskvalve f, worked by the pressure of the water, and adapted to cover the holes f in the bottom of thepiston while the upstroke is being made, and to cover similar holes, f, in the top of the said piston during the downstroke.

G is the suction-valve working frictionless on the ways 9, and provided with the op .0-

9 is a strainer into the valve.

At every upstroke of the piston F all the water in the upper part of the pump-cylinder is forced through the holes f in the top of the said piston, and up the hollow piston-rod f, which also serves as a discharge pipe. Water is also at the same time drawn through the suction -valve into the space below the piston. At the downstroke this action is reversed. The waterbeneath the piston is forced through the holes f in the bottom of the said piston up the hollow piston-rod, and Water is drawn into thespace above the piston through the suction-valve.

In order to support and steady the pumpcylinder in the bottom of the well, I prefer to form the bottom of the sand-cylinder in the form of a pointed cone; or I attach thereto a casting of that shape which penetrates partially into the bottom of the well, and thus holds the pump secure. I attach a section of pipe to the frame-work at the top of the well for the nozzle of the piston-pipe f to work in, thus preventing the water from splashing when discharged.

Having thus described my invention,whatI to prevent dirt from getting piston-rod telescoping and working in said 'stand-pipe, substantially-as and for the purpose set forth.

LAWRENCE A. KELLY.

claim as new, and desire to secure by Letters Patent,'is

In a pump, the combination, with the hollow piston-rod having at its lower end a Witnesses:

5 valved piston, of the cylinder with a valved inlet-pipe, and the stand-pipe havingaspout, O. 0. WHITE, and with the discharging endof said hollow M. A. BAKER. 

